how to do estimate 81=25+8x​

Answers

Answer 1

Answer:

None

Step-by-step explanation:

It would be easier to ask your teacher instead of getting wrong answers from random people. Ever think of that :0


Related Questions

Identify the figure that illustrates "a reflection in line k."

Answers

it’s seems to be the first one on the left!

Which of the following is an example of a set of like terms? *

17y, 17, y
15x, -x, 33x
18, 21g, 24
-5x, -5xy, -5y

Answers

15x, -x, 33x
this is the correct answer because the numbers all have the same variable at the end

A teacher is buying supplies for an upcoming art project. She buys x bottles of paint for $1.29 each. She buys 8 more canvases than bottles paint for $1.89 each. Her total pretax cost is $37.38. How many of each item is she buying?

Answers

Answer:

She is buying 7 bottles and 15 canvases of paint

Step-by-step explanation:

Answer:

7 bottles of paint and 15 canvases

Step-by-step explanation:

I'm letting x stand for the number of bottles of paint and y stand for the number of canvases

1.29x+1.89y=37.38

and y=x+8

Since the y value is isolated I can just substitute the right side of the y= equation into the original like so

1.29x+1.89(x+8)=37.38

I then distributed the 1.89 to each of the terms in the parentheses

1.29x+1.89x+15.12=37.38

I then combined like terms to get

3.18x+15.12=37.38

Then you subtract 15.12 from both sides to get

3.18x=22.26

and last we divide both sides by 3.18 to get

x=7

Now that we have x, we still need to solve for y, so I take the original equation y=x+8 and substitute in the value we solved for x to get

y=7+8

y=15

Don't forget the labels you gave each variable earlier in the problem when answering!

There are 75 students enrolled in a camp. The day before the camp begins, 8% of the students cancel. How many students actually attend the camp?

Answers

Answer:

Answer=69

Step-by-step explanation:

8% of 75=6

75-6=69

A mass suspended from a spring is raised a distance of 5 cm above its resting position. The mass is released at time t=0 and allowed to oscillate. After one third of a ​second, it is observed that the mass returns to its highest position, which was 4.5 cm above its resting position. What is the rate of change of the position of the mass at t = 2.1 seconds?

Answers

Rates of change are the change of a quantity over another.

The rate of change of the mass position at 2.1 seconds is -89.6 cm/ s

The given parameters are:

[tex]\mathbf{A = |5|}[/tex] -- the amplitude

[tex]\mathbf{T = \frac 13}[/tex] --- the period

The position of the mass is modeled by:

[tex]\mathbf{y= Acos(wt)}[/tex]

Where:

[tex]\mathbf{w = \frac{2\pi }{T}}[/tex]

So, we have:

[tex]\mathbf{w = \frac{2\pi}{1/3}}[/tex]

[tex]\mathbf{w = 6\pi }[/tex]

[tex]\mathbf{y= Acos(wt)}[/tex] becomes

[tex]\mathbf{y = |5|cos(6\pi t)}[/tex]

[tex]\mathbf{y = 5cos(6\pi t)}[/tex]

Differentiate

[tex]\mathbf{y' = 5 \times -sin(6\pi t) \times (6\pi)}[/tex]

[tex]\mathbf{y' = -30\pi sin(6\pi t) }[/tex]

When t = 2.1, we have:

[tex]\mathbf{y' = -30\pi sin(6\pi \times 2.1) }[/tex]

[tex]\mathbf{y' = -30\pi sin(12.6\pi) }[/tex]

[tex]\mathbf{y' = -30\pi \times 0.9510}[/tex]

[tex]\mathbf{y' = -89.6296}[/tex]

Approximate

[tex]\mathbf{y' = -89.6}[/tex]

Hence, the rate of change of the mass position at 2.1 seconds is -89.6 cm/ s

Read more about rates at:

https://brainly.com/question/15579510

A local school is conducting a fundraiser. The relationship between the number of raffle tickets sold, X, and the total amount of money raised in dollars, Y, is shown in this table.

X Y
5 $25
15 $75
25 $125
100 ?

How much money is raised when 100 tickets are sold?


$175

$175

$225

$225

$400

$400

$500

Answers

500$

Hope this helped :)
$500
Explanation 5 x 100

When would the tail of a comet appear to become longer?(1 point)

as it gets farther from Earth

as it gets closer to Earth

as it gets closer to the sun

as it gets farther from the sun

Answers

Answer:

As it gets closer to the sun

Step-by-step explanation:

just trust me

The tail of comet will appear to become longer : (c) as it gets closer to sun.

The tail of a comet becomes longer and more pronounced as it gets closer to sun. Comets are made up of ice, dust, and volatile gases. As a comet approaches the sun, the sun's heat causes the ices within the comet to vaporize, creating a glowing coma (a cloud of gas and dust) around the nucleus.

The solar wind and radiation pressure then push the gas and dust particles away from the coma, forming the tail that points away from the sun due to the solar wind's influence. This tail becomes more visible and elongated as the comet gets closer to the sun, making it a sight in night sky.

Therefore, the correct option is (c).

Learn more about Comet here

https://brainly.com/question/29913698

#SPJ3

The given question is incomplete, the complete question is

When would the tail of a comet appear to become longer?

(a) as it gets farther from Earth

(b) as it gets closer to Earth

(c) as it gets closer to the sun

(d) as it gets farther from the sun

Show that 0.616 = 37/60

Answers

Answer:

77/125 = 37/60?

If this is a true or false problem it would be marked false.

Calculate the area of the shaded part to 1dp​

Answers

Answer:

To find the area of the shaded region

A = Area of circle - Area of square

12cm is the diagonal of the square and diameter of the circle.

To find the side of the square,

d = √2 * s

12cm = 2 * s

s = 8.49cm

Area of square = L²

As = (8.49)²

As = 72.1cm²

Area of circle = πr²

r = 6cm

Ac = (π*36)cm²

Ac = 113.1cm²

A = Ac - As

A = 113.1cm² - 72.1cm²

A = 41cm²

The area of the shaded region is 41cm².

Answer: I can't tell from the photo which is the shaded part. I'll answer on the assumption it is either the square in the circle, or the 4 areas defined by the semicircles outside the square, but inside the circle.

Step-by-step explanation: Note the caveat above.

Circle Area = pi*r^2 or (3.14)*(6cm)^2 = 113.1 cm^2

Area of the square: The 12cm line forms an hypotenuse with either side. The sides are all equal, so if x is 1 side, we can say the area is x^2. We also know tha x^2 + x^2 = 12

x^2 = 6 cm^2 (the area of the square)

The two possible answers:

1) Shaded portion is the square: 6 cm^2

2) Shaded area means the 4 semicircles outside the square but within the circle: 113.1 cm^2 - 6 cm^2 = 107.1 cm^2

which is greater -5/8 or 6/10 and why ​

Answers

Answer:

The answer is -5/8, smaller fractions are always closer to a whole number which make them more, another way to look at it is 5 is 3 numbers away from 8, and 6 is 4 numbers away from 10, which makes -5/8 greater.

Hope this helps!

Enter your answer and show all the steps that you use to solve this problem in the space provided.

Combine like terms. What is a simpler form of the expression?
−3(−4y+3)+7y
help pls

Answers

Answer:

19y - 9

Step-by-step explanation:

- 3(- 4y + 3) + 7y ← multiply each term in the parenthesis by - 3

= 12y - 9 + 7y ← collect like terms

= 19y - 9

Express the ratio of 300 miles to 25 gallons of gasoline as a untie rate
Answers:
12 miles per gallon
1.2 miles per gallon
50 miles per gallon
32 miles per gallon

Answers

Answer:

12 miles per gallon (answer A)

Step-by-step explanation:

300:25

Divide each side by 25:

12:1

12 is your answer

Hope that helps

1/4÷3/8 i need helpp tyy

Answers

8/12 is your answer hope i could help

Pls help me with this question!!!

Answers

Answer: $2/child and $4/adult

Step-by-step explanation:

The total fare is $14 for 2 adults and 3 children

x is the child's fare

y is the adults fare

We can say:

1)  3x + 2y = $14

2)  We are told that x = (1/2)y  [each child's fare is 1/2 each adult's fare]

3) use (2) in (1)

  3x + 2y = $14

  3(1/2)y + 2y = $14

 (3/2)y + 2y = $14

  (7/2)y = $14

  y = ($14)*(2/7)

  y = $4/adult

   x = (1/2)y; x = (1/2)(4)

   x = $2/child

Check:  Does 3x + 2y = $14 when x = $2/child and y = $4/adult?

    3x + 2y = $14

    3($2/child) + 2($4/adult) = $14

      $6   +   $8 = $14   YES

8 T and 733 lbs = ? lb




HELP ME PLEASEEEEE

Answers

Answer:

16,733 lbs

Step-by-step explanation:

1 ton= 2,000 lbs. Hope this helps!

What is the difference between 4 and -5?

Answers

Answer:

l-5l+l4l=9

l . l means total value from zero.

40 Points! I'm counting on you TT

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Let's find the slope of the line using the points (0 , 4) and (-8 , 0) from the given graph :

Slope (m) :

[tex] \dfrac{y2 - y1}{x2 - x1} [/tex]

[tex] \dfrac{4 - 0}{0 - ( - 8)} [/tex]

[tex] \dfrac{4}{8} [/tex]

[tex] \dfrac{1}{2} [/tex]

hence, the correct choice is C

it is c that is what ur looking for

Please solve.. I will mark you brainliest

Answers

Step-by-step explanation:

6y=3y+6(congruent triangles)

6y-3y=6

3y = 6

y=2

ST =6(2) =12

TU = 3(2) + 6 =12

PLEASE HELP WILL MARK BRAINLIEST!

Answers

Answer:

2 x 4 − x 3 + x 2 − 9

Step-by-step explanation:

PLEASE HELP ME!!!
I need this ASAP please

Answers

8 and 6

20:8 and x:6

ask urself: what is the scale factor?

[tex]20:8 = \frac{20}{8} = 2.5\\so, multiply 6 by 2.5, which is 15\\therefore, x = 15[/tex]

Isabella and her brother, Santiago, want to make their grandma's famous fruit salad, but they can't remember how to make the honey-lime dressing. They decide to make two versions with different amounts of sweet honey and tangy lime, then compare them. Isabella mixes 4 tablespoons of honey and 2 tablespoons of lime juice. Santiago mixes 5 tablespoons of honey and 4 tablespoons of lime juice. Whose dressing is sweeter?

Answers

Answer:

Isabella

Step-by-step explanation:

4:2, is Isabella's ratio of honey:lime.

5:4, is Santiagio's ratio of honey:lime.

Therefore, Isabella has 6 equal parts over all and 4/6 of those parts are honey.

Santiago, has 9 equal parts, so he has 5/9 parts of honey.

Next is to make the denominators the same:

That would make the denominators 54 and then you just multiply the opposite denominator to the numerator:

5/9=36/54

4/6=30/54.

This means that Isabella's dressing is sweeter.

Plssssssssssssssssssssssss

Answers

Answer:

16/5[tex]\sqrt{5\\}[/tex] 6/7-3

Answer:

Greatest:

16/5

/5

-3

6/7

I think, I am no t sure

Sally left the city for vacation. Sara left 5 hours later going 58 mph faster to catch up.
After 4 hours Sara caught up. What was Sally's average speed.
O 72.5 mph
O 54.6 mph
0 46.4 mph
0 64.5 mph

Answers

Answer:46.2

Step-by-step explanation:

hope this helps

create a bar diagram to show 3 plus 5

Answers

Answer:

Can't answer

Step-by-step explanation:

I need more information to help you...

Could you please add a pic or screenshot for me to help?

Gabriella swims 2 laps per minute. What is the rate unit?

laps per minute
laps
1
2

Answers

Answer:

2

Step-by-step explanation:

Answer:

Laps per minuet

Example:

You are traveling at a rate of 45 miles per hour (or mph). Determine the unit rate and the rate unit.

Solution:

45 is the numerical part of the rate, or the unit rate.

Miles per hour is the unit part of the rate, or the rate unit.

Using the slope formula, find the slope of the line through the given points.
(1,6) and (3,4)

Answers

To find slope you do y2-y1 over x2-x1. So 4-6 is -2. And 3-1 is 2. So -2/2 is -1. The slope is -1.

PLEASE HELPPPPPPPPPPPP!

Answers

Answer:

10

Step-by-step explanation:

[tex]2^{2} +10^{2} =c^{2}[/tex]

4+100=[tex]c^{2}[/tex]

c=[tex]\sqrt{104}[/tex]

c=10.198

Round to nearest thousandth

c=10

Hope this helps :)

Comment if you need more help :) :)

10.3923
The way to solve is a 10^2+2^2=c^2
Then you get 108=c^2
You square root it because you’re trying to find one c, not multiple C’s
That gives you your C once your square it


Find the value of x in the triangle shown below.

a)=5

b)x=\/7
c)x = 7
d)x = 25

Answers

C. x = 7 that is the answer

Giving right answer branleist

Answers

In the photo below shows you the information you need

Max is conducting a study on the most used phone applications among a group of 500 students at Fairmont High School. 150 students reported using Snapshot most, while 200 students reported favoring Instapic. The rest of the students reported using Photobooth. What is the ratio of the number of students using Photobooth to those students using Instapic?

Answers

Answer:200:150

Step-by-step explanation:

Answer: 3:4

Step-by-step explanation:

Choice B is the correct answer. The number of students using Photobooth is equal to

500 - (150+200) = 150

people. To find the ratio of students using Photobooth to those using Instapic:

150/200 = 3/4

This fraction can be converted to a ratio, of 3:4

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